PT-2019-4208 · Linux+2 · Linux Kernel+2

Published 2019-10-01 · Updated 2023-01-17 · CVE-2019-19071

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.3.11

Description The issue is related to a memory leak in the rsi send beacon() function, located in drivers/net/wireless/rsi/rsi 91x mgmt.c. This leak can be triggered by causing rsi prepare beacon() failures, potentially allowing a remote attacker to consume system memory, leading to a denial of service.

Recommendations For Linux kernel versions prior to 5.3.11, update to version 5.3.11 or later to resolve the issue. As a temporary workaround, consider restricting access to the rsi send beacon() function to minimize the risk of exploitation.

Fix

DoS

Memory Leak

Resource Exhaustion

Weakness Enumeration

CWE-401

CWE-400

Related Identifiers

ALT-PU-2019-3292

ALT-PU-2019-3293

ALT-PU-2019-3295

ALT-PU-2019-3326

ALT-PU-2019-3369

ALT-PU-2020-1024

ALT-PU-2020-1421

ALT-PU-2020-1450

ALT-PU-2020-1714

ALT-PU-2020-2410

ALT-PU-2020-2433

BDU:2019-04805

CVE-2019-19071

USN-4258-1

USN-4284-1

USN-4287-1

USN-4287-2

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 67

• https://github.com/torvalds/linux/commit/d563131ef23cbc756026f839a82598c8445bc45f · Patch
• https://osv.dev/vulnerability/USN-4287-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-20096 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-7053 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19332 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4287-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-19071 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19062 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-04805 · Security Note
• https://ubuntu.com/security/CVE-2019-18683 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4284-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-18885 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19078 · Vendor Advisory
• https://usn.ubuntu.com/4287-2 · Vendor Advisory
• https://usn.ubuntu.com/4284-1 · Vendor Advisory